Home / 25,318.63-34,939.56-13,988.89

Finding the Fourth Proportional to 25,318.63, 34,939.56 and 13,988.89

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Solution

The fourth proportional to 25,318.63, 34,939.56 and 13,988.89 is: 19,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.63 : 34,939.56 = 13,988.89 : x
  2. Step 2: Convert to fraction form
    25,318.63/34,939.56 = 13,988.89/x
  3. Step 3: Cross multiply
    25,318.63x = 34,939.56 × 13,988.89
  4. Step 4: Simplify right side
    25,318.63x = 488,765,661.49
  5. Step 5: Solve for x
    x = 488,765,661.49/25,318.63
  6. Step 6: Final answer
    x = 19,304.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.